81288578

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{252449}}^1$

素因数の和:252481

約数の個数: 16

約数和(自身を含む): 145411200

約数和(自身を除く): 64122622

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 252449, 504898, 1767143, 3534286, 5806327, 11612654, 40644289, 81288578]

約数ペア:

[(1, 81288578), (2, 40644289), (7, 11612654), (14, 5806327), (23, 3534286), (46, 1767143), (161, 504898), (322, 252449)]